Draft-clevis for plows



No. 613,087. Patented Oct. 25, I898.

S. H. SNUWDEN. DRAFT GLEVIS FDB FLOWS.

(Application filed Apr. 14, 1898.)

(No Model.) 2 Sheets Sheet l.

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N0. 6|3,087. Patented Oct. 25, I898. S. H. SNOWDEN.

DRAFT ULEVIS FOR PLOWS.

(Application filed Apr. 14, 1898.)

' (N0 Model.) 2 Sheets-Sheet 2.

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NoRms PEYZRS co, Pump-1.1mm. WASHINGTON n c UNTTED STATES PATENT OFFICE.

STACY I-I. SNOWDEN, OF AROTURUS, VIRGINIA.

DRAFT-CLEVIS FOR PLOWS.

SPECIFICATION forming part of Letters Patent No. 613,087, dated October 25, 1898.

Application filed April 14:, 1898. Serial No. 677,568. (No model.)

To aZZ whom it nmy concern:

Be it known that I, STACY H. SNowDEN, residing at Arcturus, in the county of Fairfax and State of Virginia, have made certain new and useful Improvements in Draft Devices for Flows, of which the following is a full, clear, and exact specification.

My invention is in the nature of an improvement in clevises and draft-hooks for use on plows; and it consists in certain novel constructions and combinations of parts whereby I am able to regulate the slice of furrow or the amount of land taken at each cut of a plow and am also able to secure a regulation of the depth of a plow in the operation thereof, as will be more fully described hereinafter.

In the drawings, Figure 1 is a perspective view of my invention as applied to the plow having a metal beam. Fig. 2 is a similar view showing a different adjustment of the drafthook. Fig. 3 is a sectional elevation on about line 3 3 of Fig. 4. Fig. 4 is a top plan view of the improvement. Fig. 5 is a detail perspective view of the latch, and Fig. 6 is a perspective View showing the improvement applied to a wooden beam.

My invention may be embodied in or applied to plows having metal beams, as shown at A in Figs. 1, 2, 3, and 4:, or wooden beams, as shown at B in Fig. 6, the side irons of the clevis being changed slightly, as will be understood from Figs. Land 6, to suit the charactor of the beam to which the invention is applied.

In applying the clevis to metal beams I prefer to provide wooden blocks 0 on each side of the iron A and rivet the said blocks and iron together, as shown.

The clevis-irons D are pivoted at their rear ends by a bolt E to the beam and are held by a bolt F near the front end of the beam, such bolt F being applicable to any one of a series of holes G, so the clevis can be set higher or lower at its front end.

The side irons D of the clevis project in advance of the front end of the beam and receive the draft-bolt H andthe latch I.

draft-bolt H is made separate from the clevisirons and is desirable, because in case of wear This or breakage it can be easily and cheaply repaired or replaced.

The latch I is pivoted between the extended portion of the clevis-iron and is made with two wings J and K, the pivot L being arranged at the juncture of the wings J and K and being preferably secured by forming trunnions on the ends of the latch at the angle between the wings J and K. This construction avoids the necessity of separate pivots for the latch and enables the same to be held securely in place by the bolt H holding the irons D together, as will be understood from the drawings.

The wing K is cut out or notched from its free end, as shown at K, the purpose of which construction is to form seats for the draft connection presently described in different relations to the side irons D, so the draft connection can be adjusted toward either side of the clevis, as will be understood from full and dotted lines in Fig. 4, or may be set into either of the intermediate notches K, as will be understood from Figs. 1 and 2 of the drawings. The purpose of this is to enable draft to be exerted at either side of the center of the beam and to a greater or less extent to vary the amount of land taken by the plow, it being understood that if the draft be applied to one side or the other it will cause the plow to take more or less land according to the character of plowthat is, right or left handwhich may be employed. The notched wing K not only permits this adjustment of the draft connection, but also effectually locks such connection in its several adjustments.

The wing J has a double function. In the first place it operates by abutting the front end of the beam at J, as shown in Figs. 3 and 6, to stop the downward movement of the notched wing K and secure said notched wing in the latched position shown in Figs. 1, 2, 3, 4, and 6. A second function of said wing J is illustrated by the dotted lines in Fig. 3, wherein the front edge of said wing J abuts at J against the draft connection, and so forms a positive guide in adjusting the notched wing K out of engagement with the draft connection and for the lateral movement of the draft connection in adjusting the same from notch to notch without requiring the removal of said draft connection from the bolt H, all of which will be understood from Fig. 3 of the drawings.

The draft connection M comprises two hooks N and O, which are swiveled together at P, so they may 'be turned with respect to each other, as indicated in Figs. 1 and 2. These hooks N and O are adapted to engage one with the bolt H and the other with the whiffietree, and I make said hooks specially with a view to employing them as wrenches in turning the nuts on the plow, as will be understood from the nut indicated in dotted lines in the hook O of Fig. 1. This avoids the necessity of a separate wrench and combines two tools in one.

In the use of this draft connection I may apply the hook N to the bolt H from below, as shown in Fig. 1, or from above, as shown in Fig. 2, the former adjustment causing the draft connection to exert a lifting tendency on the beam, while the latter or adjustment shown in Fig. 2 tends to cause the draft connection to exert a downward tendency on the beam, and so cause the plow to run deeper. This is an important feature of my invention, and it is manifest that it may be effected by means of a swivel-joint P without detaching the hook 0 from the whitlletree, the removal of the hook N from the bolt H and its adjustment to either the position shown in Fig. 1 or that shown in Fig. 2 being quickly accomplished, or the same result may be secured in a somewhat different degree by releasing the hook 0 from the whiffletree and adjusting said hook up or down, as will be understood from full and dotted lines, Fig. 1, without removing the hook N from the bolt H.

The swiveled construction of the draft connection also permits the setting of the hook O to one or the other side, as will be understood from Fig. 2, whereby to vary the lateral tendency exerted by the draft connection on the beam in securing a regulation of the amount of land taken by the plow.

I make the holes in the irons D for the bolts E and F square at e and f to receive corresponding portions of said bolts adjacent to the heads thereof.

Manifestly the devices may be made in different sizes to suit different plows.

The jointed draft connection will be found very convenient and result in a saving of time, as its hooks can be used as wrenches to tighten or loosen the nuts, and its swivel construction permits the point or share of the plow to be tightened or removed without detaching the doubletree, as the plow can be turned to one side whenever desired.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is-

1. An improvement in plows comprising the clevis having a latch provided with a notched wing and with a stop-wing arranged at an angle thereto, the latch being pivoted substantially as shown and described.

2. An improvement in plows comprising the clevis having a latch provided with a notched wing and with a stop-wing arranged at an angle thereto and the draft connection consisting of two hooks swiveled together, one of said hooks being adapted to be secured in different engagements with the clevis by means of the notched wing and the other hook being adapted for connection with the whiffletree substantially as set forth.

3. The combination substantially as described of the clevis-irons, the beam held between the same and the latch having a notched wing to hold the draft connection, and a stopwing arranged to abut the beam and stop the notched wing in locked position substantially as set forth.

4. The improvement herein described comprising the clevis-irons, a draft bolt or bar connecting the front ends thereof, the beam between the rear ends of the clevis-irons and the latch having a notched wing arranged to secure the draft connection, engaged with the draft-bolt, in different adjustments, and the stop-wing fixed with respect to and arranged at an angle to the notched wing, such stopwing being arranged to engage the beam whereby to stop the notched wing in notched position and such stop-wing being also arranged to abut the draft connection on the draft-bolt when the latch is adjusted to free the notched wing from engagement with the draft connection whereby the stop-wing operates as a guide in adjusting the draft connection laterally substantially as set forth.

5. The improvement herein described comprising the-draft connection consisting of two hooks swiveled together and the clevis having a bolt or bar for engagement by one of said hooks and latch devices providing for various lateral adjustments whereby said hooks may be secured in different lateral adjustments on said bolt or bar, all substantially as described whereby the draft may be exerted to either side of the beam and the draft connection may be adjusted to cooperate in securing such application of the draft substantially as set forth.

, 6. The combination substantially as herein described of the clevis-irons, the bolt connecting the front ends thereof, the beam between the rear ends of said irons and the latch having the notched wing, the stop-wing at an angle to said notched wing and the trunnions at the ends of said latch and journaled in the clevis-irons substantially as set forth.

STACY H. SNOVVDEN.

Witnesses:

SoLoN C. KEMoN, PERRY B. TURPIN. 

